diff --git a/src/model/logbook.rs b/src/model/logbook.rs
index daa119f..247bf73 100644
--- a/src/model/logbook.rs
+++ b/src/model/logbook.rs
@@ -16,7 +16,7 @@ use super::{
 };
 use crate::model::user::VecUser;
 
-#[derive(FromRow, Serialize, Deserialize, Clone, Debug, Difference)]
+#[derive(FromRow, Serialize, Deserialize, Clone, Debug)]
 pub struct Logbook {
     pub id: i64,
     pub boat_id: i64,